Patents for H03L 7 - Automatic control of frequency or phase; Synchronisation (37,643)
01/2010
01/26/2010US7653143 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data
01/26/2010US7652540 Fine clock resolution digital phase locked loop apparatus
01/26/2010US7652512 Clock synchronizing circuit
01/26/2010US7652473 Magnetic field measuring optically pumped magnetometer apparatus
01/21/2010WO2010007471A1 Semiconductor device, wireless communication device and method for generating a synthesized frequency signal
01/21/2010US20100014377 Method and apparatus for reducing oscillation in synchronous circuits
01/21/2010US20100013563 Voltage-controlled oscillator circuit including level shifter, and semiconductor device including voltage-controlled oscillator circuit
01/21/2010US20100013533 Digital delay line and application thereof
01/21/2010US20100013532 Phase-locked loop circuits and methods implementing multiplexer circuit for fine tuning control of digitally controlled oscillators
01/21/2010US20100013531 Phase-locked loop circuits and methods implementing pulsewidth modulation for fine tuning control of digitally controlled oscillators
01/21/2010US20100013530 DLL-Based Multiplase Clock Generator
01/21/2010US20100013529 Reset signal generating circuit
01/21/2010DE10209011B4 Schaltung und Verfahren zur Taktsignalerzeugung Circuit and method for clock signal generation
01/21/2010DE102004036455B4 Verzögerungsschaltung und Verzögerungssynchronisations-Schleifenvorrichtung Delay circuit and delay synchronization loop device
01/21/2010DE10150362B4 Phasenselektor hoher Geschwindigkeit Phase selector high speed
01/20/2010EP2145243A1 Multi-phase clock system
01/20/2010CN201388077Y Wireless charging control chip
01/20/2010CN101630958A Voltage-controlled oscillator circuit and semiconductor device including voltage-controlled oscillator circuit
01/20/2010CN100583861C Two-point modulation type phase modulating apparatus, polar modulation transmitting apparatus, radio transmitting apparatus, and wireless communication apparatus
01/20/2010CN100583731C Clock and data recovery circuit
01/20/2010CN100583642C Device comprising a frequency divider
01/20/2010CN100583641C Digital tracking method of synchronous phase angle
01/20/2010CN100583640C Semiconductor integrated circuit
01/20/2010CN100583289C System for performing dynamic trimming
01/19/2010US7650624 Method and apparatus for modulating a video signal with data
01/19/2010US7649568 Image data decoding method of image vertical blanking interval and a device thereof
01/19/2010US7649424 Method of adjusting the resonance frequency of an L-C resonant circuit and resonant circuit
01/19/2010US7649422 Real time clock integrated circuit and electronic apparatus using the same
01/19/2010US7649421 Quality of phase lock and loss of lock detector
01/19/2010US7649420 Frequency detecting and converting apparatus
01/19/2010US7649391 Clock signal transmission circuit
01/19/2010US7649390 Delay locked loop for high speed semiconductor memory device
01/19/2010US7649389 Delay locked loop circuit, semiconductor device having the same and method of controlling the same
01/19/2010US7649388 Analog voltage recovery circuit
01/14/2010WO2010005542A1 Apparatus and methods for reducing noise in oscillating signals
01/14/2010WO2010004755A1 Testing device and testing method
01/14/2010WO2010003848A1 Method and systems for delay compensation in global pll-based timing recovery loops
01/14/2010US20100009645 Controlling Fine Frequency Changes In An Oscillator
01/14/2010US20100007428 Oscillation circuit
01/14/2010US20100007425 Pll frequency synthesizer
01/14/2010US20100007392 Crystal auto-calibration method and apparatus
01/14/2010US20100007391 Method for using digital pll in a voltage regulator
01/14/2010US20100007390 Clock generating circuit, power converting system, and related method with spread spectrum for EMI reduction
01/14/2010US20100007389 Multiple frequency synchronized phase clock generator
01/14/2010US20100007388 Method and arrangement relating power supply in an electrical device
01/14/2010US20100007383 Method and apparatus for generating a phase dependent control signal
01/13/2010EP2144373A1 Method and apparatus for achieving 50% duty cycle on the output vco of a phased locked loop
01/13/2010EP2144370A1 Oscillator phase noise reduction by self tuning filter and noise feedback
01/13/2010EP2143231A2 Digital data and clock extraction device requiring no external control
01/13/2010EP2143207A1 Digital pulse frequency/pulse amplitude (dpfm/dpam) controller for low-power switching-power supplies
01/13/2010CN201382975Y Phase noise tester
01/13/2010CN101626239A Inactive type rubidium atom frequency scale suitable for chip integration
01/13/2010CN101626238A Method for controlling voltage-controlled oscillator
01/13/2010CN101626237A Delay phase-locked loop circuit with wide-frequency locking range for avoiding phase locking error
01/13/2010CN101626236A Voltage controlled oscillator including inter-terminal connection and trap circuit
01/13/2010CN101626235A Method and device for controlling oscillator operation mode
01/13/2010CN100581096C Method and device for generating data stabilization effective index signal
01/13/2010CN100581095C Clock recovery circuit and communication device
01/12/2010US7646839 Unified digital architecture
01/12/2010US7646256 Controlled oscillation module
01/12/2010US7646254 Radiation hard oscillator and differential circuit design
01/12/2010US7646253 Frequency-locked clock generator
01/12/2010US7646227 Digital phase discriminator
01/12/2010US7646226 Adaptive bandwidth phase locked loops with current boosting circuits
01/12/2010US7646225 Mains phase detection apparatus
01/12/2010US7646224 Means to detect a missing pulse and reduce the associated PLL phase bump
01/12/2010US7646223 Phase locked loop circuit having set initial locking level and control method thereof
01/12/2010US7646222 Semiconductor device for generating power on reset signal
01/07/2010WO2010000746A1 Circuit with a time to digital converter and phase measuring method
01/07/2010WO2009124145A3 Fractional and integer pll architectures
01/07/2010WO2009073580A3 Digital phase-locked loop operating based on fractional input and output phases
01/07/2010US20100002094 Method and apparatus providing multiple exposure high dynamic range sensor
01/07/2010US20100001773 Digital pll device
01/07/2010US20100001772 Methods and systems for delay compensation in global pll-based timing recovery loops
01/07/2010US20100001771 Phase locked loop with leakage current calibration
01/07/2010US20100001770 Network and method for setting a time-base of a node in the network
01/07/2010US20100001769 Method and Apparatus for Synchronizing Time Stamps
01/07/2010DE102009030279A1 Phasenregelkreis basierter Frequenzmodulator mit einer genauen Oszillatorverstärkungseinstellung PLL-based frequency modulator with a precision oscillator gain setting
01/07/2010DE102004005261B4 Amplitudengeregelte Oszillatorschaltung und Verfahren zum Betreiben einer amplitudengeregelten Oszillatorschaltung Amplitude-regulated oscillator circuit and method for operating an amplitude-regulated oscillator circuit
01/06/2010EP2141813A1 Fully integrated frequency synthesis using PWLL
01/06/2010EP2141806A1 System for automatic tuning of an analogue filter
01/06/2010EP2141797A1 Circuit with a time to digital converter and phase measuring method
01/06/2010EP2140549A1 Oscillator signal stabilization
01/06/2010CN101622788A PLL frequency synthesizer
01/06/2010CN101621297A Detection method and circuit of frequency lock of phase lock loop
01/06/2010CN101621296A High-speed DAC synchronization method and device
01/06/2010CN100578915C Two point phase modulator and method for controlling pressure-control oscillator gain in modulator
01/06/2010CN100578913C Variable capacitor used in pressure control oscillator
01/06/2010CN100578246C Method for generating testing vector
01/05/2010US7644331 System and method for testing and debugging analog circuits in a memory controller
01/05/2010US7643721 Moving picture processing device, information processing device, and program thereof
01/05/2010US7643601 Timing extraction circuit for use in optical receiver that uses clock of frequency equal to one half of data transmission rate, and duty cycle deviation handling circuit for use in optical transmitter and receiver
01/05/2010US7643543 Multiple high-speed bit stream interface circuit
01/05/2010US7642867 Simple technique for reduction of gain in a voltage controlled oscillator
01/05/2010US7642863 Systems and methods for PLL linearity measurement, PLL output duty cycle measurement and duty cycle correction
01/05/2010US7642862 Digital phase locked loop
01/05/2010US7642861 Locked loop system
01/05/2010US7642827 Apparatus and method for multi-phase clock generation
01/05/2010US7642826 DLL circuit and semiconductor device having the same
01/05/2010US7642825 DLL circuit and test method thereof